Results 171 to 180 of about 5,031 (222)

Screening and identification of high yield tetramethylpyrazine strains in Nongxiangxing liquor Daqu and study on the mechanism of tetramethylpyrazine production

Journal of the Science of Food and Agriculture, 2023
AbstractBACKGROUNDThere are few reports on the breeding of high‐yielding tetramethylpyrazine (TTMP) strains in strong‐flavor Daqu. In addition, studies on the mechanism of TTMP production in strains are mostly based on common physiological and biochemical indicators, and there is no report on RNA level.
Yanbo Liu, Haideng Li, Suna Han
exaly   +3 more sources

GC–FID determination of tetramethylpyrazine and acetoin in vinegars and quantifying the dependence of tetramethylpyrazine on acetoin and ammonium

Food Chemistry, 2018
2,3,5,6-Tetramethylpyrazine (TMP) is an important health functional composition in vinegars, but there are controversial viewpoints about its formation mechanism and scarce relevant records on TMP content enhancement in vinegar products. In this study, a simple and accurate solvent extraction coupled with GC-FID method was developed for the ...
Zijun Xiao, Jing-Yi Zhao
exaly   +3 more sources

The Roles of Tetramethylpyrazine During Neurodegenerative Disease

Neurotoxicity Research, 2021
With the aging of the world population, neurodegenerative diseases are considered crippling diseases, which seriously affect the quality of life and are an increasing burden on society and the economy. As a major alkaloid in Ligusticum chuanxiong Hort, tetramethylpyrazine (TMP) plays an increasingly significant role during neurodegenerative diseases ...
Zeyu, Meng, Huize, Chen, Shengxi, Meng
openaire   +2 more sources

Tetramethylpyrazine, a Calcium Antagonist

Planta Medica, 1996
Tetramethylpyrazine (TMP) is a compound purified from a medicinal plant Ligusticum wallichii Franch. Its effects on in vivo blood pressure, in vitro vascular contractility, and intracellular calcium regulation in rats were examined in the present study to see if it was a possible calcium antagonist in the vascular tissue.
P K, Pang, J J, Shan, K W, Chiu
openaire   +2 more sources

Antiplatelet activity of tetramethylpyrazine

Thrombosis Research, 1994
Tetramethylpyrazine (TMPZ) is an active ingredient of a Chinese herbal medicine. We have previously shown that TMPZ possesses antithrombotic activity in rat thrombotic models. Inhibition of platelet aggregation and promotion of disaggregation contributed to the antithrombotic activity of TMPZ.
S Y, Liu, D M, Sylvester
openaire   +2 more sources

Tetramethylpyrazine trihydrate

Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 1981
CaHI2N2.3H20 , monoclinic, P21/c, a = 7.003(8), b = 13.385 (12), c = 11.640 (15)A, fl= 101.81 (10)% D x = 1.17 Mg m -a, Z = 4. Final R = 0.091 for 1852 unique reflections. The two independent molecules have lower symmetry than expected for free tetramethylpyrazine.
Braam, A. W. M., Eikelenboom, J. C., van Dijk, G., Vos, A.   +3 more
openaire   +1 more source

Antithrombotic/antiplatelet activity of tetramethylpyrazine

Thrombosis Research, 1990
Tetramethylpyrazine (TMPZ) is an active component that can be extracted from certain plants. In China, this herbal extract is used to treat ischemic vascular diseases. We have assessed the antithrombotic activity of TMPZ using arterial and venous thrombosis models in rats.
S Y, Liu, D M, Sylvester
openaire   +2 more sources

Tetramethylpyrazine : a Bacillus subtilis Growth Factor

Nature, 1962
WE have found1 that a strain of Bacillus sublilis produced tetramethylpyrazine in synthesized media containing asparagine as nitrogen source.
T, KOSUGE, H, KAMIYA
openaire   +2 more sources

Antiplatelet structure-activity relationship of tetramethylpyrazine

Life Sciences, 1994
Tetramethylpyrazine (TMPZ) is an active component of certain plants previously found to have inhibitory effects on platelet function using both in vivo and in vitro assays(1). In this study, we examined the antiplatelet activity of structural analogues of TMPZ in order to assess structural requirements for activity.
S Y, Liu, D M, Sylvester
openaire   +2 more sources